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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >The crystal structure and magnetic properties of a Zintl phase EuIrIn_4: the first member of the Eu–Ir–In family
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The crystal structure and magnetic properties of a Zintl phase EuIrIn_4: the first member of the Eu–Ir–In family

机译:Zintl相EuIrIn_4的晶体结构和磁性质:Eu–Ir–In家族的第一成员

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摘要

The indium-rich intermetallic compound EuIrIn_4 was synthesized using indium as the active metal flux. The crystal structure of EuIrIn_4 was investigated by X-ray powder and single crystal diffraction. EuIrIn_4 crystallizes in the YNiAl_4 type, Cmcm space group, with lattice parameters, a = 4.5206(9) ?, b = 16.937(3) ?, c = 7.2661(15) ?. Europium atoms in EuIrIn_4 are surrounded by three dimensional [IrIn_4] polyanionic networks. EuIrIn_4 shows two successive antiferromagnetic transitions at 5.4 and 10.8 K. Modified Curie–Weiss fitting on the magnetic susceptibility data within the temperature region 15–300 K gives the effective magnetic moment of 8.45μ_B/Eu. EuIrIn_4 shows pronounced magnetic anisotropy perpendicular to the direction of the applied magnetic field.
机译:以铟为活性金属熔剂,合成了富铟金属间化合物EuIrIn_4。通过X射线粉末和单晶衍射研究了EuIrIn_4的晶体结构。 EuIrIn_4结晶为YNiAl_4型Cmcm空间群,晶格参数为a = 4.5206(9)?,b = 16.937(3)?,c = 7.2661(15)?。 EuIrIn_4中的atoms原子被三维[IrIn_4]聚阴离子网络包围。 EuIrIn_4在5.4和10.8 K处显示了两个连续的反铁磁跃迁。在15-300 K温度区域内对磁化率数据的修正居里-魏斯拟合给出了8.45μ_B/ Eu的有效磁矩。 EuIrIn_4表现出垂直于所施加磁场方向的明显磁各向异性。

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